CVE-2023-38951

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Summary

CVECVE-2023-38951
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-08-03 23:15:11 UTC
Updated2026-07-09 01:18:33 UTC
DescriptionZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated attackers to create or overwrite arbitrary files on the server via crafted requests to /base/sftpsetting/ endpoints that abuse a path traversal issue in the Username field and a lack of input sanitization on the SSH Key field. Overwriting specific files may lead to arbitrary code execution as NT AUTHORITY\SYSTEM.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.032580000 probability, percentile 0.869200000 (date 2026-07-13)

Problem Types: CWE-22 | n/a | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Zkteco Biotime 8.5.5 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
CVE-2023-38951 | Claroty af854a3a-2127-422b-91ae-364da2661108 claroty.com Third Party Advisory
krashconsulting.com/fury-of-fingers-biotime-rce [email protected] krashconsulting.com
www.zkteco.com/en/ZKBio_Time/ZKBioTime [email protected] www.zkteco.com
github.com/omair2084/biotime-rce-8.5.5/blob/main/biotime_enum.py [email protected] github.com
www.zkteco.com/en/announcement [email protected] www.zkteco.com
sploitus.com/exploit 134c704f-9b21-4f2e-91b3-4a467353bcc0 sploitus.com
ZKTeco | Home Page  MITRE zkteco.com
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